Key C harp:

C major scale=(C D E F G A B C)
Hole No 1 2 3 4 5 6 7 8 9 10
Blow C E G C E G C E G C
Draw D G B D F A B D F A
Bend blow - - - - - - B Eb Gb B
Bend draw Db Gb Bb Db E Ab - - - -
Overblow C# F G# C# F G# - - - -
Overdraw - - - - - - C D# F# A#

Key D harp:

D major scale=(D E F# G A B C D)
Hole No 1 2 3 4 5 6 7 8 9 10
Blow D F# A D F# A D F# A D
Draw E A C E G B C E G B
Bend blow - - - - - - Db F Ab Db
Bend draw Eb Ab B Eb Gb Bb - - - -
Overblow D# G A# D# G A# - - - -
Overdraw - - - - - - C# F G# C

Chords on harps

Chords Key C harp Key D harp
B=B+D#+F# -3,-7=B -6,-10=B
2,5,8=F#
B7=B+D#+F#+A -(6,7)=A+B (2,3),(5,6),(8,9)=F#+A
B7sus4=B+E+F#+A -(6,7)=A+B (2,3),(5,6),(8,9)=F#+A
-(1,2)=E+A
Bm=B+D+F# -(3,4),-(7,8)=B+D (1,2),(4,5),(7,8)=D+F#
A=A+C#+E -6=A
2,5,8=E
-(1,2)=E+A
A7=A+C#+E+G (2,3),(5,6),(8,9)=E+G
-6=A
2,5,8=E
-(1,2)=E+A
-(4,5),-(8,9)=E+G
A7sus4=A+D+E+G (2,3),(5,6),(8,9)=E+G
-6=A
2,5,8=E
(3,4),(6,7),(9,10)=A+D
-(1,2)=E+A
-(4,5),-(8,9)=E+G
Am=A+C+E (1,2),(4,5),(7,8)=C+E -(1,2,3,4)=E+A+C+E
-(2,3,4)=A+C+E
-(7,8)=C+E
Am7=A+C+E+G (1,2,3,4,5,6,7,8,9,10),(4,5,6,7,8,9,10),(7,8,9)=C+E+G -(1,2,3,4,5)=E+A+C+E+G
-(2,3,4,5)=A+C+E+G
-(7,8,9)=C+E+G
G=G+B+D -(1,2,3,4)=D+G+B+D
-(2,3,4)=G+B+D
-(5,6),-(9,10)=G+B
Gm=G+Bb+D -(1,2)=D+G
3,6,9=G
-5=G
1,4,7,10=D
F#=F#+A#+C# ? 2,5,8=F#
F#m=F#+A+C# -6,-10=A (2,3),(5,6),(8,9)=F#+A
F=F+A+C -(5,6),-(9,10)=F+A -(2,3)=A+C
F7=F+A+C+D# -(5,6),-(9,10)=F+A -(2,3)=A+C
Fm=F+Ab+C -5,-9=F
1,4,7,10=C
-3,-7=C
E=E+G#+B 2,5,8=E
-3,-7=B
-1,-4,-8=E
-6,-10=B
E7=E+G#+B+D -(3,4),-(7,8)=B+D -1,-4,-8=E
-6,-10=B
E7sus4=E+A+B+D -(6,7,8)=A+B+D
-(3,4)=B+D
-(1,2)=E+A
(3,4),(6,7),(9,10)=A+D
Em=E+G+B (2,3),(5,6),(8,9)=E+G
-(2,3)=G+B
-(4,5,6),-(8,9,10)=E+G+B
Em7=E+G+B+D (2,3),(5,6),(8,9)=E+G
-(2,3,4)=G+B+D
-(3,4),-(7,8)=B+D
-(4,5,6),-(8,9,10)=E+G+B
D=D+F#+A -1,-4,-8=D
-6,-10=A
(1,2,3,4,5,6,7,8,9,10),(4,5,6,7,8,9,10),(8,9,10)=D+F+A
D7=D+F#+A+C -1,-4,-8=D
-6,-10=A
1,4,7,10=C
(1,2,3,4,5,6,7,8,9,10),(4,5,6,7,8,9,10),(8,9,10)=D+F#+A
-(2,3)=A+C
Dm=D+F+A -(4,5,6),-(8,9,10)=D+F+A 1,4,7,10=D
-2=A
C=C+E+G (1,2,3,4,5,6,7,8,9,10),(4,5,6,7,8,9,10),(7,8,9)=C+E+G -(3,4,5),-(7,8,9)=C+E+G
Cm=C+Eb+G (3,4),(6,7),(9,10)=G+C -3,-7=C
-5,-9=G